/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsEditorOnlyExp/Public/AttributeEditorTool.h
enum EAttributeEditorToolActions { NoAction, ClearNormals, DiscardTangents, ClearAllUVs, ClearSelectedUVs, AddUVSet, DeleteSelectedUVSet, DuplicateSelectedUVSet, AddAttribute, AddWeightMapLayer, AddPolyGroupLayer, DeleteAttribute, ClearAttribute, CopyAttributeFromTo, EnableLightmapUVs, DisableLightmapUVs, ResetLightmapUVChannels, }